Visit us at 48 Watt Road, Mornington or simply call us on 5972 0576.

Clearfix Self Cutting Polycarbonate Screw & Dome Seal

On a cloudy and sunny day, Polycarbonate roofing experiences a process called “expansion and contraction”. This can give that “cracking” and “creaking” sound, which is caused when the roofing panels rub against the timber batten the panels are fixed to.

To reduce and avoid this noise, we recommend the use of “self cutting” screws. These roofing screws incorporate a “cutting head” on the shaft which cuts an oversized hole in the sheet, allowing room to expand, thus hugely reducing that annoying “cracking” sound.